C-Class (W203) 2001-2007, C160, C180, C200, C220, C230, C240, C270, C280, C300, C320, C230K, C350, Coupe

Broken motor mount? Limit slip diffs?

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Old 03-12-2010, 04:05 PM
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Broken motor mount? Limit slip diffs?

I did search, so If the answer is in one, sorry.

I think I have a broken motor mount, M272 V6. Is there any way to tell by driving it, to me it feels like it loose as if a motor mount is broken, but my buddy drove it and said oh that's just how rwd cars feel, its all in the rear end, no broken mount, but it seems like is maybe is, any definitive way to tell? I mean, I think IIRC the mounts are liquid filled, so wouldn't I see fluid coming from one if broken? I never really paid attention so it may be just me, but it seems like you can feel then engine rock in neutral when you press the gas, or when you press on and then lift off the pedal?

Also doing auto x allot lately and I was wondering, do our cars have a lsd at all, and what is the stock rear gearing? (Assuming based on driving) we don't have a LSD, does some one make one for our cars? Or Is AMG a solution (Id assume one of them would work)

Thanks
Old 03-12-2010, 04:24 PM
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I'm not sure if the C230 and C350 use the same mounts? We'd need to know which of your cars we're talking about before we can help. lol

No LSD in the 203.
Old 03-12-2010, 04:34 PM
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Actually , it may not be a motor mount. Have you checked your rear trailing arm bushings?? When you accelerate in straight line hard, does it feel like your rear end want to go side ways?

On the side note, but pertaining to the same issue, are there any companies making any poluurethane bushings upgrades for our suspension/mounts/etc???
Old 03-12-2010, 04:37 PM
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Originally Posted by LILBENZ230
I'm not sure if the C230 and C350 use the same mounts? We'd need to know which of your cars we're talking about before we can help. lol

No LSD in the 203.
He mentioned he is doing auto cross a lot lately so it has to be the C350 since when you buy a C350 6MT you auto cross it.

---------------------
Start your engine and let it run for a few minutes. Rev the engine and listen closely. Do you feel excessive vibration? If a motor mount is unstable or broken, the engine will move around and create vibration that you may feel and hear while inside the vehicle.

Last edited by W203E35; 03-12-2010 at 04:40 PM.
Old 03-12-2010, 05:44 PM
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Originally Posted by Karo
He mentioned he is doing auto cross a lot lately so it has to be the C350 since when you buy a C350 6MT you auto cross it.
*falls out of chair*
Old 03-12-2010, 06:12 PM
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a quarter mile at a time
Old 03-12-2010, 07:45 PM
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I had the dealer checked mine for similar issue, and the motor mount was normal.
Old 03-12-2010, 08:07 PM
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Sounds like normal operation of the engine to me. The engine dies rock when revved. If a motor mount was bad, you would be getting some serious vibration at idle. That i the experience I had when the mounts went bad on my CLK.
Old 03-12-2010, 10:49 PM
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very cute guys, your so funny I fell off my dinosaur, the 230.

Andrew, No I dont feel any difference at idle at all, Ill call you and well have to meet up, Im staying in town this weekend, and you can drive it and see what you think.

I do occasionally get the feeling the rear end wants to go out from under the body of the car, but its usually at hight speeds or in a random turn, but not always Id says once a month or so.

So is there no LSDs avail for our cars?
Old 03-13-2010, 12:01 AM
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Sounds great to me! I'm heading down tomorrow, and will be there until Wednesday. Just let me know.
Old 03-13-2010, 06:06 AM
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No LSD, right. You could have a bad transmission mount (aka rear engine mount). My car did this and it caused some weird drivability issues.
Old 03-13-2010, 06:53 AM
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Originally Posted by Karo
He mentioned he is doing auto cross a lot lately so it has to be the C350 since when you buy a C350 6MT you auto cross it.

---------------------
Start your engine and let it run for a few minutes. Rev the engine and listen closely. Do you feel excessive vibration? If a motor mount is unstable or broken, the engine will move around and create vibration that you may feel and hear while inside the vehicle.
Nice Avatar You should let Patrick out of his cage to play with the other boys!
Old 03-13-2010, 07:38 AM
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Originally Posted by LILBENZ230
No LSD, right. You could have a bad transmission mount (aka rear engine mount). My car did this and it caused some weird drivability issues.
any way to physically check this? AKA going under the car and locating the mount, have any idea of its general location?
Old 03-13-2010, 10:17 AM
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a quarter mile at a time
Originally Posted by AdidasC230
any way to physically check this? AKA going under the car and locating the mount, have any idea of its general location?
yeah, it's right next to the imaginary C350 6MT.
Old 03-13-2010, 02:01 PM
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pshek, for his C32 conversion, had mentioned that he wanted to put in a Quaife LSD, but I don't recall if he ever did it. He's the type to do his research, so I assume it would have worked in some fashion.
Old 03-13-2010, 03:52 PM
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Originally Posted by e1000
yeah, it's right next to the imaginary C350 6MT.
really, are you still stuck on that? lets move right along and maybe answer my question, instead of posting something thats quite off topic to the thread.

Since your such an expert with these cars you should know where the mount is.
Old 03-13-2010, 04:21 PM
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a quarter mile at a time
Originally Posted by AdidasC230
really, are you still stuck on that? lets move right along and maybe answer my question, instead of posting something thats quite off topic to the thread.

Since your such an expert with these cars you should know where the mount is.
why don't you try searching, because all of the questions you've asked in this thread can be easily answered by doing your homework. Maybe if you quit making up stories you'd have the time to lookup some real info.
Old 03-13-2010, 07:11 PM
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Originally Posted by e1000
yeah, it's right next to the imaginary C350 6MT.
Last I heard he took a road trip back to texas because his buddy found him a manual C55 and he broke even..it was albaster white too

Didn't you see the new thread? "What do you do when you buy a C55 6MT... You drag it"
Old 03-13-2010, 09:46 PM
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Originally Posted by e1000
why don't you try searching, because all of the questions you've asked in this thread can be easily answered by doing your homework. Maybe if you quit making up stories you'd have the time to lookup some real info.
and maybe if you would quite trying to play fake forum police you could READ, that I searched, 8 to 10 times using key words "motor mount" "transmission mount" "rear mount" with combo of "w203" "C class" "6MT" and a combo of more, and NONE of the searches threw up a relevant thread to this, which gave a location of where the mount is, so I can see weather I need a lift of if I can see it from looking down under the hood.

So thank you for contributing nothing to the thread and doing nothing to answer my question.
Old 03-13-2010, 09:49 PM
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Originally Posted by Karo
Last I heard he took a road trip back to texas because his buddy found him a manual C55 and he broke even..it was albaster white too

Didn't you see the new thread? "What do you do when you buy a C55 6MT... You drag it"
really? and what do you do when you have no life? You go through some ones pictures to prove a point that, oh wait there was no point, and then you tell every one your so amazing because you know how to tell a C350 from a C230 but it took you 5 days to call it, so WOW, your AMAZING. For some one who said "i have nothing against adidas" you shore do act like you do.
Old 03-13-2010, 10:40 PM
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a quarter mile at a time
Originally Posted by AdidasC230
and maybe if you would quite trying to play fake forum police you could READ, that I searched, 8 to 10 times using key words "motor mount" "transmission mount" "rear mount" with combo of "w203" "C class" "6MT" and a combo of more, and NONE of the searches threw up a relevant thread to this, which gave a location of where the mount is, so I can see weather I need a lift of if I can see it from looking down under the hood.

So thank you for contributing nothing to the thread and doing nothing to answer my question.
Oh, sorry, I couldn't tell if your first post was the truth or if you were just making up a story again.
Old 03-14-2010, 07:18 AM
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Originally Posted by e1000
Oh, sorry, I couldn't tell if your first post was the truth or if you were just making up a story again.


CrocsC350, Quaife doesn't make LSD's for a C230 or imaginary LSD's for a C350. Your best bet is to check with Kleemann.

P.S. You'll get sarcastic responses to all of your posts on this forum after your antics and subsequent loss of credibility, so don't get all butt-hurt and defensive.
Old 03-14-2010, 06:27 PM
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No LSD?

To my understanding, if you jack up a car and spin one of the rear wheels and both go in the same direction it is LSD, is that correct?

I did this on my w203 and both wheels were spining in the same direction, also when doing a burnout both wheels spin and leave 2 marks.

If its just a open wheel rear diff then if you spin one wheel while jacked up, then only 1 wheel should spin and the other should stay still.

Maybe Australian version w203s got LSD?
Old 03-14-2010, 06:58 PM
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there is no mechanical lsd for the w203 stock. The cars have a form of e-diff tied to the traction control. The esp, brakes the wheel thats losing traction, so they both spin at the same rate.

You can try phantom grip, i hear they'll rebuilt your oem differential to lsd for relatively cheap.

http://phantomgrip.com/
Old 03-14-2010, 08:05 PM
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Originally Posted by benzc200k
To my understanding, if you jack up a car and spin one of the rear wheels and both go in the same direction it is LSD, is that correct?..
Not necessarily. Save for a very few select models, MB hasn’t typically fit limited slip differentials in their contemporary cars.

Our independent rear suspension with its fixed pumpkin tends to minimize the ‘peg leg’ effect during straight-ahead motoring – even without electronic aids, i.e., ESP/ASR. When lateral loads are a part traction circle equation, they’ll invariably spin the inside tire mercilessly given enough thrust.

Several thumping M113 Kompressor pilots here reported no improvement in their drag strip times after having installed a LSD. Once you’re chasing quicker times through slalom or getting after it on a road circuit, they’re indeed a worthy upgrade.

Perhaps our Australian friend’s M111 coupé is a ringer?


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